Home / 390,382,262.12-585,574,761.18-99,249,416.20

Finding the Fourth Proportional to 390,382,262.12, 585,574,761.18 and 99,249,416.20

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Solution

The fourth proportional to 390,382,262.12, 585,574,761.18 and 99,249,416.20 is: 148,874,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,382,262.12 : 585,574,761.18 = 99,249,416.20 : x
  2. Step 2: Convert to fraction form
    390,382,262.12/585,574,761.18 = 99,249,416.20/x
  3. Step 3: Cross multiply
    390,382,262.12x = 585,574,761.18 × 99,249,416.20
  4. Step 4: Simplify right side
    390,382,262.12x = 58,117,953,188,569,416
  5. Step 5: Solve for x
    x = 58,117,953,188,569,416/390,382,262.12
  6. Step 6: Final answer
    x = 148,874,472.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.